You could create an OC that is a young artist who has the unique ability to see the energy patterns of the Transformers. Their art is inspired by these visions. They get caught up in the war between the Autobots and Decepticons when they accidentally draw a map that reveals the location of a powerful Cybertronian weapon. This OC would then have to navigate the dangerous world of the Transformers while also trying to protect their newfound friends.
One idea could be an OC who is a mechanic with a special ability to understand ancient Cybertronian technology. This character could be found by the Autobots and end up helping them repair an important artifact. They might have a backstory of being an outcast in their human community because of their obsession with machines, but in the Transformers world, their skills are highly valued.
Another option is an OC that is a historian who has been secretly studying the history of the Transformers on Earth. They discover a hidden connection between an ancient human civilization and the Transformers. This OC could befriend Bumblebee and use their knowledge to help the Autobots and humans work together more effectively. They might also face challenges from those who don't believe their theories.
First, do a lot of research on the Transformers universe, especially the lore and characters in The Last Knight. Know the rules, like how the Transformers function, their relationships, and the overall plot of the movie. Then, develop your OC. Give them a clear personality, backstory, and motivation. For example, if your OC is a human helping the Autobots, why are they doing it? Are they in it for adventure, or do they have a personal vendetta against the Decepticons? Next, create a solid plot that involves your OC in a meaningful way. Don't just have them tag along. They should contribute to the story. Also, pay attention to the dialogue. Make it sound natural for both the humans and the Transformers. And finally, proofread your fanfiction carefully to avoid any grammar or spelling mistakes.
One idea could be to focus on the interaction between the Autobots and the characters from 'The Last Knight' universe. For example, how would Optimus Prime react to the ancient secrets and magic in that world? Another inspiration could be the concept of transformation in both. The Transformers can transform physically, while in 'The Last Knight' there might be metaphorical or magical 'transformations' of characters. You could explore how these different forms of transformation intersect.
Megatron and a powerful, perhaps morally ambiguous character from 'The Last Knight'. Megatron's thirst for power and the other character's own desires could either lead to a clash or an unexpected alliance. It would be fascinating to see how their different motives play out and whether they end up working towards a common goal or against each other.
A Vehicon OC fanfiction could focus on their transformation into a more independent being. They might discover a hidden power within themselves that sets them apart from the other Vehicons. This new power could lead them on a journey of self - discovery and ultimately a change in their allegiance.
One great 'Transformers Watching The Last Knight' fanfiction is 'Cybernetic Observations'. It delves into the Transformers' unique perspectives while watching the events of the movie. The author does a wonderful job of showing how they might react to the human - Transformer interactions and the battles that unfold.
The plot involves the Autobots and Decepticons' ongoing struggle. It might include their battles on Earth and in space, with Optimus Prime playing a central role in the fight for the future of their race and the planet Earth.
One idea could be to create an OC Predacon who is an outcast in their own clan. They might have different beliefs or abilities that set them apart. For example, this OC could have the power to communicate with other species in a way that other Predacons can't. This would lead to a lot of internal conflict within the clan as well as interesting interactions with other Transformers.
In 'Transformers Watching The Last Knight' fanfiction, the 'time - travel' trope can be found in some stories. This allows the Transformers to go back and change or better understand the events of the movie. The 'what - if' trope is also popular. For instance, what if a different Transformer was in charge during the events of the movie? And the 'secret - revealed' trope, where hidden secrets about the Transformers or the movie's plot are uncovered as they watch the movie.
Optimus Prime is surely one of the main characters. He's the leader of the Autobots and a key figure in the story.
One idea could be an OC (Original Character) who is a new Autobot arriving on Earth. They have a unique ability, like being able to communicate with animals. This could lead to some interesting adventures as they help the other Autobots in ways the others can't. For example, they might get help from a flock of birds to spy on Decepticons.